CSI-2 to HDMI - Revision history

G8GKQ at 14:53, 10 July 2017

2017-07-10T14:53:13Z

G8GKQ at 14:45, 10 July 2017

2017-07-10T14:45:58Z

G8GKQ at 13:24, 10 July 2017

2017-07-10T13:24:04Z

G8GKQ at 13:23, 10 July 2017

2017-07-10T13:23:08Z

G8GKQ at 13:21, 10 July 2017

2017-07-10T13:21:20Z

G8GKQ at 13:17, 10 July 2017

2017-07-10T13:17:46Z

G8GKQ at 12:30, 10 July 2017

2017-07-10T12:30:33Z

G8GKQ at 12:29, 10 July 2017

2017-07-10T12:29:33Z

G8GKQ at 12:26, 10 July 2017

2017-07-10T12:26:46Z

G8GKQ at 12:24, 10 July 2017

2017-07-10T12:24:24Z

@@ Line 10: / Line 10: @@
 The unmodified board, and the 2 modifications are shown below.
-[[File:HDMI Stage 0.jpg|200px|left|thumb|Unmodified]][[File:HDMI Stage 1.jpg|200px|left|thumb|Modification 1]][[File:HDMI Stage 2.jpg|200px|left|thumb|Modification 2]]
+[[File:HDMI Stage 0.jpg|200px|left|thumb|Unmodified]][[File:HDMI-extender-fix_Stage_1a.jpg|200px|left|thumb|Modification 1]][[File:HDMI Stage 2.jpg|200px|left|thumb|Modification 2]]
 The HDMI pins are numbered from 19 on the left to 1 on the right in the images.  The CSI-2 connector pins are numbered from 1 on the left to 15 on the right.  The detailed pinout is below for reference.

← Older revision		Revision as of 14:45, 10 July 2017
Line 1:		Line 1:
−	It is possible to use an HDMI cable to extend the lead on the Pi Camera CSI-2 connection, but some lower quality HDMI cables will not work without modifications to the Tindie connector cards https://www.tindie.com/products/freto/pi-camera-hdmi-cable-extension/. This is because some cables do not include the ground/shield connection for the 4 data pairs, and some do not include a wire for the Consumer Electronics Control (CEC) channel on pin 13.	+	It is possible to use an HDMI cable to extend the lead on the Pi Camera CSI-2 connection, but some lower quality HDMI cables will not work (and do not allow the camera to start up) without modifications to the Tindie connector cards https://www.tindie.com/products/freto/pi-camera-hdmi-cable-extension/. This is because some cables do not include the ground/shield connection for the 4 data pairs, and some do not include a wire for the Consumer Electronics Control (CEC) channel on pin 13.

	There are 2 modifications required:		There are 2 modifications required:

← Older revision		Revision as of 13:24, 10 July 2017
Line 12:		Line 12:
	[[File:HDMI Stage 0.jpg\|200px\|left\|thumb\|Unmodified]][[File:HDMI Stage 1.jpg\|200px\|left\|thumb\|Modification 1]][[File:HDMI Stage 2.jpg\|200px\|left\|thumb\|Modification 2]]		[[File:HDMI Stage 0.jpg\|200px\|left\|thumb\|Unmodified]][[File:HDMI Stage 1.jpg\|200px\|left\|thumb\|Modification 1]][[File:HDMI Stage 2.jpg\|200px\|left\|thumb\|Modification 2]]

−	The HDMI pins are numbered from 19 on the left 19 to 1 on the right in the images ~~above~~. The CSI-2 connector pins are numbered from 1 on the left to 15 on the right. The detailed pinout is below for reference.	+	The HDMI pins are numbered from 19 on the left to 1 on the right in the images. The CSI-2 connector pins are numbered from 1 on the left to 15 on the right. The detailed pinout is below for reference.

@@ Line 1: / Line 1: @@
-It is possible to use an HDMI cable to extend the lead on the Pi Camera CSI-2 connection, but some lower quality HDMI leads will not work without modifications to the Tindie connector cards https://www.tindie.com/products/freto/pi-camera-hdmi-cable-extension/.  This is because some of them do not include the ground/shield connection for the 4 data pairs, and some do not include a wire for the Consumer Electronics Control (CEC) channel on pin 13.
+It is possible to use an HDMI cable to extend the lead on the Pi Camera CSI-2 connection, but some lower quality HDMI cables will not work without modifications to the Tindie connector cards https://www.tindie.com/products/freto/pi-camera-hdmi-cable-extension/.  This is because some cables do not include the ground/shield connection for the 4 data pairs, and some do not include a wire for the Consumer Electronics Control (CEC) channel on pin 13.
 There are 2 modifications required:
-The first uses the overall cable screen to replace the non-existent data pair screens.  To make this modification, simply use solder to bridge the 2 rectangular pads above to the "GND" caption on the right hand side of the HDMI socket.  Thanks to Tindie and his blog http://petitstudio.blogspot.co.uk/2015/05/hdmi-cables-are-not-all-same.html for this modification.
+The first modification uses the overall cable screen to replace the non-existent data pair screens.  To make this modification, simply use solder to bridge the 2 rectangular pads above to the "GND" caption on the right hand side of the HDMI socket.  Thanks to Tindie and his blog http://petitstudio.blogspot.co.uk/2015/05/hdmi-cables-are-not-all-same.html for this modification.
 The second modification uses one of the spare cores (labelled a, b, c and d) instead of the possibly non-existent Pin 13 CEC core.  This modification requires a fine soldering iron and a magnifying glass to solder a wire between pin 13 on the CSI-2 flat cable connector (coincidentally connected to pin 13 on the HDMI connector) and the round pad labelled "d".  Use a test meter to check that you have not created a solder bridge to pin 12 or pin 14 after making this modification.  I chose the "d" pad because this is a data wire in the normal usage of HDMI.
 The unmodified board, and the 2 modifications are shown below.

← Older revision		Revision as of 13:21, 10 July 2017
Line 1:		Line 1:
−	It is possible to use an HDMI cable to extend the lead on the Pi Camera but some lower quality HDMI leads will not work without modifications to the Tindie connector cards https://www.tindie.com/products/freto/pi-camera-hdmi-cable-extension/. This is because some of them do not include the ground/shield connection for the 4 data pairs, and some do not include a wire for the Consumer Electronics Control (CEC) channel on pin 13.	+	It is possible to use an HDMI cable to extend the lead on the Pi Camera CSI-2 connection, but some lower quality HDMI leads will not work without modifications to the Tindie connector cards https://www.tindie.com/products/freto/pi-camera-hdmi-cable-extension/. This is because some of them do not include the ground/shield connection for the 4 data pairs, and some do not include a wire for the Consumer Electronics Control (CEC) channel on pin 13.

	There are 2 modifications required:		There are 2 modifications required:

@@ Line 42: / Line 42: @@
 | TMDS Clk +
 |-
+| 4
+| Ground
+| Ground
+| Ground
+| 8
+| Ground
 |-
+|
+| 9
+| TMDS 0 -
 |-
+|
+| 7
+| TMDS 0 +
 |-
+| 7
+| Ground
+| Ground
+| Ground
+| 5
+| Ground
 |-
+|
+| 6
+| TMDS 1 -
 |-
+|
+| 4
+| TMDS 1 +
 |-
+| 10
+| Ground
+| Ground
+| Ground
+| 2
+| Ground
 |-
+|
+|
+| 3
+| TMDS 2 -
 |-
+|
+|
+| 1
+| TMDS 2 +
 |-
+|
+| 13
+| CEC
 |-
+|
+| 14
+| Reserved
 |-
+|
+|
+| 15
+| DDC
 |-
+|
+|
+|
+| a
+| 19
+| Hot plug
 |-
+|
+|
+|
+| b
+| 18
+| +5v
 |-
+|
+|
+|
+| c
+| 17
+| Data Shield
 |-
+|
+|
+|
+| d
+| 16
+| DDC
 |}

← Older revision		Revision as of 12:30, 10 July 2017
Line 10:		Line 10:
	[[File:HDMI Stage 0.jpg\|200px\|left\|thumb\|Unmodified]][[File:HDMI Stage 1.jpg\|200px\|left\|thumb\|Modification 1]][[File:HDMI Stage 2.jpg\|200px\|left\|thumb\|Modification 2]]		[[File:HDMI Stage 0.jpg\|200px\|left\|thumb\|Unmodified]][[File:HDMI Stage 1.jpg\|200px\|left\|thumb\|Modification 1]][[File:HDMI Stage 2.jpg\|200px\|left\|thumb\|Modification 2]]

−	The HDMI pins are numbered from the left 19 to 1 on the right in the images above. The CSI-2 connector pins are numbered from 1 on the left to 15 on the right. The detailed pinout is below for reference.	+	The HDMI pins are numbered from 19 on the left 19 to 1 on the right in the images above. The CSI-2 connector pins are numbered from 1 on the left to 15 on the right. The detailed pinout is below for reference.

@@ Line 14: / Line 14: @@
 {| class="wikitable"
+! CSI-2 Pin
+! Name
+! Purpose
+! Tindie PCB
+! HDMI Pin
+! HDMI Name
 |-
+| 1
+| Ground
+| Groun
+| Ground
+| 11
+| Ground
 |-
+|

← Older revision		Revision as of 12:24, 10 July 2017
Line 8:		Line 8:

	The unmodified board, and the 2 modifications are shown below.		The unmodified board, and the 2 modifications are shown below.
−	[[File:HDMI Stage 0.jpg\|200px\|thumb~~\|left~~\|Unmodified]][[File:HDMI Stage 1.jpg\|200px\|thumb~~\|center~~\|Modification 1]][[File:HDMI Stage 2.jpg\|200px\|thumb~~\|right~~\|Modification 2]]	+	[[File:HDMI Stage 0.jpg\|200px\|left\|thumb\|Unmodified]][[File:HDMI Stage 1.jpg\|200px\|left\|thumb\|Modification 1]][[File:HDMI Stage 2.jpg\|200px\|left\|thumb\|Modification 2]]
		+
		+	The HDMI pins are numbered from the left 19 to 1 on the right in the images above. The CSI-2 connector pins are numbered from 1 on the left to 15 on the right. The detailed pinout is below for reference.
		+
		+
		+	{\| class="wikitable"
		+	!
		+	!
		+	!
		+	!
		+	!
		+	!
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		+	\|}